package dujiu.luogu.branch;

import java.util.Scanner;

public class P2433 {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int T = sc.nextInt();
        switch (T) {
            case 1:
                System.out.println("I love Luogu!");
                break;
            case 2:
                System.out.print(2+4+" "+4);
                break;
            case 3:
                System.out.println(3);
                System.out.println(12);
                System.out.println(2);
                break;
            case 4:
                System.out.printf("%.3f",500/3.0);
                break;
            case 5:
                System.out.println(15);
                break;
            case 6:
                System.out.printf("%.6f",Math.sqrt(36+81));
                break;
            case 7:
                System.out.println(110);
                System.out.println(90);
                System.out.println(0);
                break;
            case 8:
                System.out.println(2*5*3.141593);
                System.out.println(5*5*3.141593);
                System.out.println((5*5*3.141593*4)/3);
                break;
            case 9:
                System.out.println(22);
                break;
            case 10:
                System.out.println(9);
                break;
            case 11:
                System.out.printf("%.3f",100/3.0);
                break;
            case 12:
                System.out.println(13);
                System.out.println("R");
                break;
            case 13:
                System.out.println(16);
                break;
            case 14:
                System.out.println(50);
                break;
        }
        sc.close();
    }
}
